﻿using System;
using System.ComponentModel;
using InfiniTec.Threading;

namespace InfiniTec
{
    public static class EventHandlerExtension
    {
        public static void Raise(this PropertyChangedEventHandler eventHandler, object sender, PropertyChangedEventArgs e)
        {
            if (e == null) throw new ArgumentNullException("e");
            if (eventHandler != null)
            {
                eventHandler(sender, e);
            }
        }

        public static void Raise(this EventHandler eventHandler, object sender, EventArgs e)
        {
            if (e == null) throw new ArgumentNullException("e");
            if (eventHandler != null)
            {
                eventHandler(sender, e);
            }
        }

        public static void Raise(this EventHandler eventHandler, object sender)
        {
            eventHandler.Raise(sender, EventArgs.Empty);
        }

        public static void Raise(this PropertyChangedEventHandler eventHandler, object sender, string propertyName)
        {
            eventHandler.Raise(sender, new PropertyChangedEventArgs(propertyName));
        }

        public static void Raise(this ProgressChangedEventHandler eventHandler, object sender, ProgressChangedEventArgs e)
        {
            if (e == null) throw new ArgumentNullException("e");
            if (eventHandler != null)
            {
                eventHandler(sender, e);
            }
        }
        public static void Raise<T>(this AsyncCompletedEventHandler<T> eventHandler, object sender, AsyncCompletedEventArgs<T> e)
        {
            if (e == null) throw new ArgumentNullException("e");
            if (eventHandler != null)
            {
                eventHandler(sender, e);
            }
        }
        public static void Raise(this AsyncCompletedEventHandler eventHandler, object sender, AsyncCompletedEventArgs e)
        {
            if (e == null) throw new ArgumentNullException("e");
            if (eventHandler != null)
            {
                eventHandler(sender, e);
            }
        }

        public static void Raise<T>(this EventHandler<T> eventHandler, object sender, T e) where T : EventArgs
        {
            if (e == null) throw new ArgumentNullException("e");
            if (eventHandler != null)
            {
                eventHandler(sender, e);
            }
        }
    }
}